Single-pixel terahertz imaging based on compressed sensing

被引：0
|
作者：
Zhao Y. [1 ,2 ]
Zhang L. [2 ]
Zhu D. [2 ]
Liu X. [1 ]
Zhang C. [2 ]
机构：
[1] School of Optoelectronics, Beijing Institute of Technology
[2] Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Department of Physics, Capital Normal University
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2011年 / 38卷 / SUPPL. 1期
关键词：
Backward wave oscillator; Compressed sensing; Image systems; Single-pixel imaging; Terahertz;
D O I：
10.3788/CJL201138.s111003
中图分类号：
学科分类号：
摘要：
A terahertz (THz) imaging system and the image formation is based on the theory of compressed sensing (CS) is described. CS combines sampling and compression into a single non-adaptive linear measurement process, and then reconstructs the original image by using measurements based on reconstruction algorithm. It is abtained that a single intensity value by measuring the inner of a single mask and original image and a series of measurements with the same number of masks. CS permits the reconstruction of a N pixel × N pixel image using much fewer than N 2 measurements to reduce the imaging time. This approach eliminates the need for raster scanning of the object or the THz beam, while maintaining the high sensitivity of a single-element detector. The experiment using a backward wave oscillator (BWO) which is a continuous-wave THz source and get a preliminary test result.
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页码：s111003 / 1
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